R. David Gustafson is Professor Emeritus of Mathematics at Rock Valley College in Illinois and has also taught extensively at Rockford College and Beloit College. He is coauthor of several best-selling mathematics textbooks, including Gustafson/Frisk/Hughes' COLLEGE ALGEBRA, Gustafson/Karr/Massey's BEGINNING ALGEBRA, INTERMEDIATE ALGEBRA, BEGINNING AND INTERMEDIATE ALGEBRA, BEGINNING AND INTERMEDIATE ALGEBRA: A COMBINED APPROACH, and the Tussy/Gustafson and Tussy/Gustafson/Koenig developmental mathematics series. His numerous professional honors include Rock Valley Teacher of the Year and Rockford's Outstanding Educator of the Year. He has been very active in AMATYC as a Midwest… Vice-president and has been President of IMACC, AMATYC's Illinois affiliate. He earned a Master of Arts from Rockford College in Illinois, as well as a Master of Science from Northern Illinois University.Edward L. Green, professor of mathematics at John Jay College of Criminal Justice, has taught post-secondary math for over 35 years. He is the recipient of the first Teacher of Excellence Award from John Jay College and has served as the Director of the John Jay College Forensic Science Institute as well as the Deputy Director of the John Jay College Summer Institute Training Program for Elementary School Teachers in Mathematics. He received his B.S. from Long Island University, his masters from Wagner College, and completed his post-graduate education at New York University and Fordham University. Always interested in sharing his experience and knowledge with a wider audience, he has authored numerous basic skills texts including Basic College Mathematics for the 21st Century and this Workbook for the Accuplacer and Compass Mathematics Exam.